YouTube has refused a request from US Sen. Joe Lieberman (ID-Conn.) to remove all videos sponsored by terrorist organizations like Al-Qaeda, contending that most of them don't violate its community guidelines.

Lieberman, chairman of the Senate Committee on Homeland Security and Governmental Affairs, Monday called on the Google Inc subsidiary to remove video content produced by terrorist organizations that showed assassinations, deaths of US soldiers and civilians, weapons training, "incendiary" speeches and other material intended to "encourage violence against the West."